Electrical connector and process of making same.



0. A. ROGERS.

' ELECTRICAL CONNECTOR AND PROCESS OF MAKING SAME.

APPLICATION FILED 00T.27, 1910.

1,078,751 Patented Nov. 18, 1913.

' inafter described.

V UNITED STATES PATENT OFFICE.

owmv A. ROGERS, or Bunnie, summer assume: no Ems on aromas BATTERYcentral, or WEST ozumon, new JERSEY, n comm'rron or NEW mnsmr.

ELECTRICAL CONNECTOR .LND PROCESS 01 MAKING To all whom it may concern:

Be it known that I, OWEN A. Rooms, a citizen oftheUnited States, anda'resident' of Berlin, Germany, have invented a certain new and usefulImprovement in Electrical Connectors and Processes of Making Same, p

to storage batteries, it will be evident that it is not limited thereto,and may be used wherever a connection of this type is desired, orwherever it is desired to connect together two or more members or parts.As applied to storage batteries, my improvement is particularlyeflicient for connecting the poles of the difi'erentcells forming thebattery, especially when the battery'is to be used on vehicles, as thejolting to which such a battery is subjected necessitates a connectionof great durability, and ability to maintain an eflicient electricalcontact under all conditions. 'In the embodiment disclosed, each batterypole has fitted thereon a lug or bushing with a suitable hole to receivesaid pole. This lug is provided with an extension having a sockettherein to re-' ceive the connecting wire, said extension also having anopening or openings in the wall of the socket for a purpose to be here-The end of the connecting wire is inserted in the socket and theextension compressed into close contact therewith. A groove, preferablyannular, is also formed on the extension, the metal displaced therebyforming a similar groove in the inserted connecting wire, the metaldisplaced by the formation of the groove'in the connecting wire beingforced or squeezed into the opening or openings in the wall of thesocket. The exterior of the opening is closed in any desired manner,thereby looking the squeezed out portion of the inserted wire within theextension. The members maybe compressed in any desired manner as by adrop press having an annular bead of proper dimensions to perform thedesired operation. The connection formed is not only particularlyeflicient from the standpoint of Specification of Letters Intent.

Application filed October 27, 1910. Serial No. 580,403.

Patented N (W. 1 8, 1913.

Reference is made to the accompanying drawings wherein Figure 1 is aplan view of storage battery cells showing the connecting device appliedto the poles thereof; Fig. 2 is a plan of the lug and connecting wirewith parts cut away to show the squeezing of the connecting wire intoopenings provided therefor in the extension of the lug; Fig. 3 is a sideelevation of the lug and connecting wire showing the groove formed inthe extension of the lug by'the press, and the manner in which theopenings in the extension are closed; Fig. 4: is a section through theconnecting wire looking in the direction of the lug and showing thepress about to descend thereon; Fig. 5 is a vertical section of the lugshowing the connecting wire in elevation, with the press about todescend thereon, having portions cutaway to show the annulargroove-forming bead on said press. Fig. 6 is a sectionalview of the lagand the extension showing the socket and the opening leading therefrom;and Fig. 7 is a view oft-he lug and extension with the wire securedtherein.

Similar reference numerals refer to similar parts throughout thedrawings.

To illustrate my invention, 1 have shown it-applied to storage batterycells connected 111 series, wherein 1 indicates the cells of thebattery,

' and 2 indicates the poles thereof to which the lug or bushing i issecured by any suitable device, as nuts 3. In the embodiment disclosed,the lug 4 is provided with a hole 5 to receive the pole of the battery,and with an extension 6 having a socket 7 therein. The extension, isalso provided with open ings 8 of any desired number and of any desiredshape for a purpose to be hereinafter described. The connecting wire inthe embodimentdisclosed consists of a portion 20 of any desired length,preferably havin its end enlarged as at 21 to a size to ma e a good fitwithin the socket of the extension. After the wire is placed in thesocket, referably as far as 'it will go, the lug is p aced in a press 30having a beadfBl, and the extension pressed intofirm contact with thesurface of the connecting wire, thereby forming an eflicient electricalconnection. At the same time, by means of its head 31, the press formsan annular groove 9 in the surface of the extension. The metal displacedby the forming of this groove is forced into the connecting Wirecontained in the extension socket, thereby forming a similar shapedgroove therein, and the metal displaced 1n turn from the connecting wireby the forming of its groove is squeezed out through the aforementionedopenings :8 in the extension 6, as indicated by reference numeral 22 onFig. 2 of the drawings. At the same time the outer surface of theextension adjacent the openings 8 is squeezed together, thereby closingthe opening, as shown in Fig. 7, and locking the squeezed-out metal ofthe connecting wire within the extension and the openings.

It will be evident that the device resulting from this process has itsparts in firm contact throughout, and that the same are locked togetherpermanently and securely by the grooves formed therein, and by thesqueezing of the connectin in the extension. This method may be used tosecure any number of parts together, whether or not an electricalconnection is desired. A lug having any desired number of sockets may beprovided, or two parts may be secured together by this method withoutthe use of a connecting lug, by properly shaping their contiguous ends.

Many modifications will be apparent to those skilled in the art, myinvention not be ing limited to the particular process and articledescribed, but consisting ofa connection between two parts whereby theyare, by a cheap and efficient process, secured together by compressionin such a manner that an excellent contact is made therebetween and thetwo parts firmly secured together.

Having thus disclosed one embodiment of my invention, what I claim anddesire to protect" by Letters Patent is:

1. The process of securing members together, which consists in providingone of said members with a socket having openings therein, inserting theother member in said socket, and compressing the members to form agroove in the socket member, the metal displaced from said grooveforminga groove in said inserted member, and the metal displaced byforming the groove in said inwire into the openings serted member beingforced out through the openings in said socket member.

2. The process of securing members together which consists in providingone of said members with a socket having 0 enings, inserting the othermember in sai socket, and compressing both members into firm contact,thereby forming a groove on the socket member, the metal displaced fromsaid groove on the socket member forming a groove in said insertedmember, the metal displaced by forming the groove on said insertedmember being forced into the openings on-the socket member, and themetal around the outside of said openings on the socket member beingsqueezed together to close said opening.

3. As an article of manufacture, a member provided with a socket and anopening, a member inserted in said socket, both members having grooves,therein, the groove on the inserted member formed by the displaced metalof the groove on the socket member, and the metal displaced by theformation of the groove on the inserted member entering the opening ofthe socket member. 4. As an article of manufacture, a member providedwith a socket and openings, another member inserted in said socket, agroove in said members, the displaced material formed by the groove inthe socket member forming the groove on the inserted member, and themetal displaced by the formation of the groove on the inserted memberentering the openings of the socket member, and the outslde of saidopenings being closed.

5. The process of securing members together, which consists in providingone of said members with a socket having an opening therein, insertingthe other member in said socket, and compressing the members to form agroove in the socket member, the metal displaced from said grooveforming a groove in said inserted member, and the metal displaced byforming the groove in said inserted member being forced through theopening in said socket member.

This specification signed and witnessed this 11th day of October, 1910.

OWEN A. ROGERS.

In presence of HENRY HASPER, WOLDEMAR HAUPT.

